last modified command

function lmf {
  if [ -z "$1" ]
  then
    ls -ctr -d db/migrate/* | tail -1
  else
    ls -ctrdl $1/*| egrep -v '^d'| tr -s ' ' |cut -d" " -f9  | tail -1
  fi
}

function lm {
  if [ -z "$1" ]
  then
    vi `ls -ctr -d db/migrate/* | tail -1`
  else
    vi `ls -ctrdl $1/*| egrep -v '^d'| tr -s ' ' |cut -d" " -f9  | tail -1`
  fi
}